When mixing concrete with a ratio of 5 parts cement, 3 parts gravel, and 4 parts water for 6 tons of concrete, how much gravel is required?

To determine how much gravel is required when mixing concrete with a ratio of 5 parts cement, 3 parts gravel, and 4 parts water, you should first understand the total parts in the mix. In this case, you have:

• 5 parts cement

• 3 parts gravel

• 4 parts water

This totals to 12 parts (5 + 3 + 4 = 12). To find out how much each part represents in terms of the total weight of concrete, you need to divide the total weight of the concrete (6 tons) by the total number of parts (12 parts).

Calculating the weight of each part:

6 tons ÷ 12 parts = 0.5 tons per part.

Next, to find out the amount of gravel, you look at the number of parts dedicated to gravel, which is 3 parts. You would multiply the weight of each part by the number of parts for gravel:

0.5 tons per part × 3 parts = 1.5 tons.

This indicates that for a concrete mix totaling 6 tons, 1.5 tons of gravel is required according to the proportions specified. Hence, this calculation aligns with the information regarding the portions of each